Use a monotonic clock (TimeTicks) to report network times to WebCore.

chrome/common/extensions/extension_localization_peer.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_COMMON_EXTENSIONS_EXTENSION_LOCALIZATION_PEER_H_
 #define CHROME_COMMON_EXTENSIONS_EXTENSION_LOCALIZATION_PEER_H_
 #pragma once
 
 #include <string>
 
@@ skipping 16 matching lines @@
       webkit_glue::ResourceLoaderBridge::Peer* peer,
       IPC::Message::Sender* message_sender,
       const std::string& mime_type,
       const GURL& request_url);
 
   // ResourceLoaderBridge::Peer methods.
   virtual void OnUploadProgress(uint64 position, uint64 size);
   virtual bool OnReceivedRedirect(
       const GURL& new_url,
       const webkit_glue::ResourceResponseInfo& info,
+      const base::TimeTicks& start_time,
+      const base::TimeTicks& end_time,
       bool* has_new_first_party_for_cookies,
       GURL* new_first_party_for_cookies);
   virtual void OnReceivedResponse(
-      const webkit_glue::ResourceResponseInfo& info);
+      const webkit_glue::ResourceResponseInfo& info,
+      const base::TimeTicks& start_time,
+      const base::TimeTicks& end_time);
   virtual void OnDownloadedData(int len) {}
   virtual void OnReceivedData(const char* data,
                               int data_length,
                               int encoded_data_length);
   virtual void OnCompletedRequest(const net::URLRequestStatus& status,
                                   const std::string& security_info,
-                                  const base::Time& completion_time);
+                                  const base::TimeTicks& completion_time);

[jar (doing other things), 2011/11/19 03:42:32]

Generally I like to see TimeTicks used more (it is not local time dependent),
but there are some places that need the local adjusted time.  I'll be curious to
see where this falls.

 
  private:
   friend class ExtensionLocalizationPeerTest;
 
   // Use CreateExtensionLocalizationPeer to create an instance.
   ExtensionLocalizationPeer(
       webkit_glue::ResourceLoaderBridge::Peer* peer,
       IPC::Message::Sender* message_sender,
       const GURL& request_url);
 
@@ skipping 10 matching lines @@
   // Sends ExtensionHostMsg_GetMessageBundle message to the browser to fetch
   // message catalog.
   IPC::Message::Sender* message_sender_;
 
   // Buffer for incoming data. We wait until OnCompletedRequest before using it.
   std::string data_;
 
   // Original request URL.
   GURL request_url_;
 
+  // When the request started and the initial response was returned.
+  base::TimeTicks start_time_;
+  base::TimeTicks end_time_;
+
  private:
   DISALLOW_COPY_AND_ASSIGN(ExtensionLocalizationPeer);
 };
 
 #endif  // CHROME_COMMON_EXTENSIONS_EXTENSION_LOCALIZATION_PEER_H_